Home / 10,283.08-15,419.22-5,340.64

Finding the Fourth Proportional to 10,283.08, 15,419.22 and 5,340.64

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Solution

The fourth proportional to 10,283.08, 15,419.22 and 5,340.64 is: 8,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,283.08 : 15,419.22 = 5,340.64 : x
  2. Step 2: Convert to fraction form
    10,283.08/15,419.22 = 5,340.64/x
  3. Step 3: Cross multiply
    10,283.08x = 15,419.22 × 5,340.64
  4. Step 4: Simplify right side
    10,283.08x = 82,348,503.10
  5. Step 5: Solve for x
    x = 82,348,503.10/10,283.08
  6. Step 6: Final answer
    x = 8,008.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.